lazydns

TTL Plugin

ttl rewrites or clamps TTLs on response records. It supports fixing all TTLs to a single value or applying a min/max range.

Exec quick-setup

• Fixed TTL: ttl:60 sets all record TTLs to 60.
• Range: ttl:30-300 enforces min=30, max=300.

Args

• ttl: fixed TTL (integer) — alternative to quick-setup

Behavior

• If fix is set (non-zero), all record TTLs are replaced with that value.
• Otherwise min / max are applied to clamp existing TTLs.

When to use

• Enforce caching policies, limit DNS amplification, or normalize TTLs across upstream variability.
• Use to reduce load on upstream servers by increasing TTLs within acceptable bounds.

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